rhizobium

Summary

Summary: A genus of gram-negative, aerobic, rod-shaped bacteria that produce nodules on the roots of leguminous plants. Members of this genus are common soil inhabitants.

Top Publications

  1. ncbi Virus-induced gene silencing in tomato
    Yule Liu
    Department of Molecular, Cellular and Developmental Biology, OML 451, Yale University, PO Box 208104, New Haven, CT 06520 8104, USA
    Plant J 31:777-86. 2002
  2. pmc SymRK defines a common genetic basis for plant root endosymbioses with arbuscular mycorrhiza fungi, rhizobia, and Frankiabacteria
    Hassen Gherbi
    Equipe Rhizogenèse, Unité Mixte de Recherche Diversité et Adaptation des Plantes Cultivées DIAPC, Institut de recherche pour le developpement IRD, 911 Avenue Agropolis, 34394 Montpellier Cedex 5, France
    Proc Natl Acad Sci U S A 105:4928-32. 2008
  3. ncbi Metabolic changes of rhizobia in legume nodules
    Juergen Prell
    School of Biological Sciences, University of Reading, UK, RG6 6AJ
    Trends Microbiol 14:161-8. 2006
  4. ncbi Early infection of scutellum tissue with Agrobacterium allows high-speed transformation of rice
    Seiichi Toki
    Plant Genetic Engineering Research Unit, National Institute of Agrobiological Sciences, 2 1 2 Kannondai, Tsukuba, Ibaraki 305 8602, Japan
    Plant J 47:969-76. 2006
  5. ncbi Symbiotic implications of type III protein secretion machinery in Rhizobium
    V Viprey
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Universite de Geneve, Geneva, Switzerland
    Mol Microbiol 28:1381-9. 1998
  6. pmc Rhizobium sp. strain NGR234 possesses a remarkable number of secretion systems
    Christel Schmeisser
    Biozentrum Klein Flottbek, Abteilung für Mikrobiologie und Biotechnologie, Universitat Hamburg, Germany
    Appl Environ Microbiol 75:4035-45. 2009
  7. ncbi Evolving ideas of legume evolution and diversity: a taxonomic perspective on the occurrence of nodulation
    Janet I Sprent
    Division of Applied and Environmental Biology, College of Life Sciences, University of Dundee, Dundee, UK
    New Phytol 174:11-25. 2007
  8. ncbi Nodulation of Sesbania species by Rhizobium (Agrobacterium) strain IRBG74 and other rhizobia
    Stephen P Cummings
    School of Applied Sciences, Ellison Building, University of Northumbria, Newcastle upon Tyne, UK
    Environ Microbiol 11:2510-25. 2009
  9. ncbi Biological systems of the host cell involved in Agrobacterium infection
    Vitaly Citovsky
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794, USA
    Cell Microbiol 9:9-20. 2007
  10. ncbi Intergenomic epistasis and coevolutionary constraint in plants and rhizobia
    Katy D Heath
    Department of Plant Biology, University of Minnesota, St Paul, Minnesota 55108, USA
    Evolution 64:1446-58. 2010

Detail Information

Publications293 found, 100 shown here

  1. ncbi Virus-induced gene silencing in tomato
    Yule Liu
    Department of Molecular, Cellular and Developmental Biology, OML 451, Yale University, PO Box 208104, New Haven, CT 06520 8104, USA
    Plant J 31:777-86. 2002
    ..Using this vector, we have silenced RbcS and an endogenous gene homologous to the tomato EST cLED3L14. In the future, this modified vector system will facilitate large-scale functional analysis of tomato ESTs...
  2. pmc SymRK defines a common genetic basis for plant root endosymbioses with arbuscular mycorrhiza fungi, rhizobia, and Frankiabacteria
    Hassen Gherbi
    Equipe Rhizogenèse, Unité Mixte de Recherche Diversité et Adaptation des Plantes Cultivées DIAPC, Institut de recherche pour le developpement IRD, 911 Avenue Agropolis, 34394 Montpellier Cedex 5, France
    Proc Natl Acad Sci U S A 105:4928-32. 2008
    ..Taken together, our results demonstrate that SymRK functions as a vital component of the genetic basis for both plant-fungal and plant-bacterial endosymbioses and is conserved between legumes and actinorhiza-forming Fagales...
  3. ncbi Metabolic changes of rhizobia in legume nodules
    Juergen Prell
    School of Biological Sciences, University of Reading, UK, RG6 6AJ
    Trends Microbiol 14:161-8. 2006
    ..Rhizobia (e.g. Rhizobium, Sinorhizobium, Bradyrhizobium, Mesorhizobium and Azorhizobium species) can survive and compete for nutrients in ..
  4. ncbi Early infection of scutellum tissue with Agrobacterium allows high-speed transformation of rice
    Seiichi Toki
    Plant Genetic Engineering Research Unit, National Institute of Agrobiological Sciences, 2 1 2 Kannondai, Tsukuba, Ibaraki 305 8602, Japan
    Plant J 47:969-76. 2006
    ..Our new system should reduce the somaclonal variation accompanying prolonged culture of rice cells in the dedifferentiated state and facilitate the molecular breeding of rice...
  5. ncbi Symbiotic implications of type III protein secretion machinery in Rhizobium
    V Viprey
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Universite de Geneve, Geneva, Switzerland
    Mol Microbiol 28:1381-9. 1998
    The symbiotic plasmid of Rhizobium sp. NGR234 carries a cluster of genes that encodes components of a bacterial type III secretion system (TTSS). In both animal and plant pathogens, the TTSS is an essential component of pathogenicity...
  6. pmc Rhizobium sp. strain NGR234 possesses a remarkable number of secretion systems
    Christel Schmeisser
    Biozentrum Klein Flottbek, Abteilung für Mikrobiologie und Biotechnologie, Universitat Hamburg, Germany
    Appl Environ Microbiol 75:4035-45. 2009
    b>Rhizobium sp. strain NGR234 is a unique alphaproteobacterium (order Rhizobiales) that forms nitrogen-fixing nodules with more legumes than any other microsymbiont. We report here that the 3...
  7. ncbi Evolving ideas of legume evolution and diversity: a taxonomic perspective on the occurrence of nodulation
    Janet I Sprent
    Division of Applied and Environmental Biology, College of Life Sciences, University of Dundee, Dundee, UK
    New Phytol 174:11-25. 2007
    ..Nodule morphology and structure are host-determined, but the effectiveness of nitrogen fixation is largely controlled by the bacterial symbionts, which vary greatly in genotypic and phenotypic characters...
  8. ncbi Nodulation of Sesbania species by Rhizobium (Agrobacterium) strain IRBG74 and other rhizobia
    Stephen P Cummings
    School of Applied Sciences, Ellison Building, University of Northumbria, Newcastle upon Tyne, UK
    Environ Microbiol 11:2510-25. 2009
    ..isolated from root nodules of the aquatic legume Sesbania cannabina as a close relative of the plant pathogen Rhizobium radiobacter (syn. Agrobacterium tumefaciens). However, DNA:DNA hybridization with R. radiobacter, R. rubi, R...
  9. ncbi Biological systems of the host cell involved in Agrobacterium infection
    Vitaly Citovsky
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794, USA
    Cell Microbiol 9:9-20. 2007
    ....
  10. ncbi Intergenomic epistasis and coevolutionary constraint in plants and rhizobia
    Katy D Heath
    Department of Plant Biology, University of Minnesota, St Paul, Minnesota 55108, USA
    Evolution 64:1446-58. 2010
    ..natural populations, I studied the symbiotic fitness benefits for both partners in 108 plant maternal family by rhizobium strain combinations...
  11. ncbi Rapid, transient expression of fluorescent fusion proteins in tobacco plants and generation of stably transformed plants
    Imogen A Sparkes
    School of Life Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
    Nat Protoc 1:2019-25. 2006
    ..These cells can be used to generate stable plant lines using a more time-consuming, cell culture technique. Transient expression takes from 2 to 4 days whereas stable lines are generated after approximately 2 to 4 months...
  12. pmc Increasing plant susceptibility to Agrobacterium infection by overexpression of the Arabidopsis nuclear protein VIP1
    Tzvi Tzfira
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794 5215, USA
    Proc Natl Acad Sci U S A 99:10435-40. 2002
    ....
  13. ncbi Improved cotyledonary node method using an alternative explant derived from mature seed for efficient Agrobacterium-mediated soybean transformation
    Margie M Paz
    Department of Agronomy, Iowa State University, Ames, IA 50011 1010, USA
    Plant Cell Rep 25:206-13. 2006
    ..Significantly, the half-seed system is simple and does not require deliberate wounding of explants, which is a critical and technically demanding step in the cotyledonary node method...
  14. ncbi Complete genome sequencing of Agrobacterium sp. H13-3, the former Rhizobium lupini H13-3, reveals a tripartite genome consisting of a circular and a linear chromosome and an accessory plasmid but lacking a tumor-inducing Ti-plasmid
    Daniel Wibberg
    Institute for Genome Research and Systems Biology, CeBiTec, Bielefeld University, D 33501 Bielefeld, Germany
    J Biotechnol 155:50-62. 2011
    Agrobacterium sp. H13-3, formerly known as Rhizobium lupini H13-3, is a soil bacterium that was isolated from the rhizosphere of Lupinus luteus...
  15. pmc Genetic regulation of nitrogen fixation in rhizobia
    H M Fischer
    Mikrobiologisches Institut, Eidgenossische Technische Hochschule, ETH Zentrum, Zurich, Switzerland
    Microbiol Rev 58:352-86. 1994
    ..complex genetic regulatory networks that control nitrogen fixation in three representative rhizobial species, Rhizobium meliloti, Bradyrhizobium japonicum, and Azorhizobium caulinodans...
  16. ncbi Rhizobia utilize pathogen-like effector proteins during symbiosis
    Kumiko Kambara
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Sciences III, 30 Quai Ernest Ansermet, Universite de Geneve, CH 1211 Geneva 4, Switzerland
    Mol Microbiol 71:92-106. 2009
    A type III protein secretion system (T3SS) is an important host range determinant for the infection of legumes by Rhizobium sp. NGR234...
  17. ncbi High-efficiency Agrobacterium-mediated transformation of citrus via sonication and vacuum infiltration
    Maria Luiza Peixoto de Oliveira
    Plant Biology Department, Plant Tissue Culture Laboratory BIOAGRO, Federal University of Vicosa, Vicosa, MG, Brazil
    Plant Cell Rep 28:387-95. 2009
    ..The transformation frequencies achieved in this study (8.4% for 'Pineapple' sweet orange and 11.2% for 'Swingle' citrumelo) are the highest ones reported for both cultivars...
  18. ncbi Rhizobium alamii sp. nov., an exopolysaccharide-producing species isolated from legume and non-legume rhizospheres
    Odile Berge
    CEA, DSV, IBEB, SBVME, Laboratoire d Ecologie Microbienne de la Rhizosphère et d Environnements Extrêmes LEMiRE, F 13108 Saint Paul lez Durance, France
    Int J Syst Evol Microbiol 59:367-72. 2009
    ..16S rRNA gene sequence analysis showed that the isolates are closely related to the strains Rhizobium sp. YAS34 and USDA 1920, respectively isolated from sunflower roots and Medicago ruthenica nodules...
  19. ncbi Replication-independent expression of genome components and capsid protein of brome mosaic virus in planta: a functional role for viral replicase in RNA packaging
    Padmanaban Annamalai
    Department of Plant Pathology, University of California, Riverside, CA 92521 0122, USA
    Virology 338:96-111. 2005
    ..These results demonstrated that packaging of BMV genomic RNAs is not replication dependent whereas expression of a functional viral replicase plays an active role in increasing specificity of RNA packaging...
  20. ncbi Plant proteins involved in Agrobacterium-mediated genetic transformation
    Stanton B Gelvin
    Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907 1392, USA
    Annu Rev Phytopathol 48:45-68. 2010
    ....
  21. ncbi Multiresistance genes of Rhizobium etli CFN42
    R González-Pasayo
    Centro de Investigacion Sobre Fijacion de Nitrogeno, and Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Cuernavaca, Morelos
    Mol Plant Microbe Interact 13:572-7. 2000
    Multidrug efflux pumps of bacteria are involved in the resistance to various antibiotics and toxic compounds. In Rhizobium etli, a mutualistic symbiont of Phaseolus vulgaris (bean), genes resembling multidrug efflux pump genes were ..
  22. ncbi Rhizobium type III secretion systems: legume charmers or alarmers?
    C Marie
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Universite de Geneve, 1 ch de l Impératrice, 1292, Chambésy Genève, Switzerland
    Curr Opin Plant Biol 4:336-42. 2001
    ..Considered as a machine used by plant and animal pathogens to deliver virulence factors into their hosts, this secretion apparatus has recently been proven to play a role in symbiotic bacteria-leguminous plant interactions...
  23. ncbi Living without Fur: the subtlety and complexity of iron-responsive gene regulation in the symbiotic bacterium Rhizobium and other alpha-proteobacteria
    Andrew W B Johnston
    School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
    Biometals 20:501-11. 2007
    ..In this paper, we build on our own work on Rhizobium leguminosarum (the symbiont of peas, beans and clovers) and on Bradyrhizobium japonicum, which nodulates ..
  24. pmc Functional adaptation of a plant receptor-kinase paved the way for the evolution of intracellular root symbioses with bacteria
    Katharina Markmann
    Genetics, Faculty of Biology, Ludwig Maximilians Universitat, Munich, Germany
    PLoS Biol 6:e68. 2008
    Nitrogen-fixing root nodule symbioses (RNS) occur in two major forms-Actinorhiza and legume-rhizobium symbiosis-which differ in bacterial partner, intracellular infection pattern, and morphogenesis...
  25. pmc Association of the Agrobacterium T-DNA-protein complex with plant nucleosomes
    Benoît Lacroix
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794 5215, USA
    Proc Natl Acad Sci U S A 105:15429-34. 2008
    ..Furthermore, this nucleosome-associated ternary complex can bind another bacterial virulence factor, VirF, which is an F-box protein known to target both VirE2 and VIP1 for proteasomal degradation and uncoat the T-DNA...
  26. ncbi Agrobacterium rhizogenes-mediated transformation of soybean to study root biology
    Attila Kereszt
    ARC Centre of Excellence for Integrative Legume Research, The University of Queensland, St Lucia, Queensland 4072, Australia
    Nat Protoc 2:948-52. 2007
    ..Using this method, almost 100% of the infected plants form hairy roots within 1 month from the start of the experiments...
  27. ncbi Agrobacterium rhizogenes-transformed roots of Medicago truncatula for the study of nitrogen-fixing and endomycorrhizal symbiotic associations
    A Boisson-Dernier
    , INRA-CNRS UMR215, Castanet-Tolosan, France
    Mol Plant Microbe Interact 14:695-700. 2001
    ..Our results suggest that M. truncatula hairy roots represent a particularly attractive system with which to study endosymbiotic associations in transgenically modified roots...
  28. pmc Silencing on the spot. Induction and suppression of RNA silencing in the Agrobacterium-mediated transient expression system
    L K Johansen
    Institute of Biological Chemistry, Washington State University, Pullman, Washington 99164-6340, USA
    Plant Physiol 126:930-8. 2001
    ..They also indicate that RNA silencing may be a significant limitation to expression of genes in the Agrobacterium-mediated transient assay but that this limitation can be overcome by using RNA silencing suppressors...
  29. pmc Cooperative binding of Agrobacterium tumefaciens VirE2 protein to single-stranded DNA
    P Sen
    Department of Biochemistry, University of Minnesota, St Paul 55108
    J Bacteriol 171:2573-80. 1989
    ..Analysis of the DNA-VirE2 complex by electron microscopy demonstrated that VirE2 coats a single-stranded DNA molecule and that the binding of VirE2 to its substrate is cooperative...
  30. pmc Rhizobial and fungal symbioses show different requirements for calmodulin binding to calcium calmodulin-dependent protein kinase in Lotus japonicus
    Yoshikazu Shimoda
    Division of Plant Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305 8602, Japan
    Plant Cell 24:304-21. 2012
    ..Based on these genetic, biochemical, and structural studies, we propose an activation mechanism of CCaMK in which root nodule and arbuscular mycorrhizal symbioses are distinguished by differential regulation of CCaMK by CaM binding...
  31. pmc CDKB2 is involved in mitosis and DNA damage response in rice
    Masaki Endo
    Plant Genome Engineering Research Unit, Agrogenomics Research Center, National Institute of Agrobiological Sciences, 2 1 2 Kannondai, Tsukuba, Ibaraki 305 8602, Japan
    Plant J 69:967-77. 2012
    ..In addition, polyploid cells due to endomitosis were present in CDKB2;1 knockdown rice, suggesting an important role for Orysa;CDKB2;1 during mitosis...
  32. ncbi Controlling the reproductive fate of rhizobia: how universal are legume sanctions?
    Ryoko Oono
    Ecology Evolution and Behavior, University of Minnesota, Saint Paul, MN 55108, USA
    New Phytol 183:967-79. 2009
    ..Both the importance of sanctions to hosts and possible physiological mechanisms for sanctions may depend on whether bacteroids are potentially reproductive...
  33. pmc Increasing the amylose content of durum wheat through silencing of the SBEIIa genes
    Francesco Sestili
    Department of Agrobiology and Agrochemistry, University of Tuscia, Viterbo, Italy
    BMC Plant Biol 10:144. 2010
    ..Expression of RNAi transcripts was targeted to the seed endosperm using a tissue-specific promoter...
  34. ncbi Symbiotic use of pathogenic strategies: rhizobial protein secretion systems
    William J Deakin
    LBMPS, University of Geneva, 30, quai Ernest Ansermet Sciences III, CH 1211 Geneve 4, Geneva, Switzerland
    Nat Rev Microbiol 7:312-20. 2009
    ..One group of proteins secreted by rhizobia have homologues in bacterial pathogens and may have been co-opted by rhizobia for symbiotic purposes...
  35. pmc Heme-dependent metalloregulation by the iron response regulator (Irr) protein in Rhizobium and other Alpha-proteobacteria
    Sandra K Small
    Department of Biochemistry and the Witebsky Center for Microbial Pathogenesis and Immunology, State University of New York at Buffalo, Buffalo, New York 14214, USA
    Biometals 22:89-97. 2009
    ..The iron response regulator (Irr) is part of a novel regulatory scheme employed by Rhizobium and other Alpha-Proteobacteria to control iron-dependent gene expression...
  36. ncbi Detection of two loci involved in (1-->3)-beta-glucan (curdlan) biosynthesis by Agrobacterium sp. ATCC31749, and comparative sequence analysis of the putative curdlan synthase gene
    S J Stasinopoulos
    Department of Biochemistry and Department of Microbiology, La Trobe University, Bundoora 3083, Australia
    Glycobiology 9:31-41. 1999
    ..Whatever the determinants of the linkage specificity of these beta-glucan synthases might be, these results raise the possibility that (1-->3)-beta-glucans and (1-->4)-beta-glucans are formed by related catalytic polypeptides...
  37. ncbi Multilocus sequence analysis of Brazilian Rhizobium microsymbionts of common bean (Phaseolus vulgaris L.) reveals unexpected taxonomic diversity
    Renan Augusto Ribeiro
    Embrapa Soja, Cx Postal 231, 86001 970 Londrina, Parana, Brazil
    Res Microbiol 160:297-306. 2009
    ..Gene sequence similarities among the five type/reference Rhizobium strains which are symbionts of common bean ranged from 95 to 100% for 16S rRNA, and from 83 to 99% for the other ..
  38. ncbi Nitric oxide in legume-rhizobium symbiosis
    Eliane Meilhoc
    INRA, Laboratoire des Interactions Plantes Microorganismes, UMR441, F 31326 Castanet Tolosan, France
    Plant Sci 181:573-81. 2011
    ..During the last decade, increasing evidence of the occurrence of NO during legume-rhizobium symbioses has been reported, from early steps of plant-bacteria interaction, to the nitrogen-fixing step in ..
  39. pmc Real-time imaging of fluorescent flagellar filaments of Rhizobium lupini H13-3: flagellar rotation and pH-induced polymorphic transitions
    Birgit Scharf
    Lehrstuhl fur Genetik, Universitat Regensburg, D 93040 Regensburg, Germany
    J Bacteriol 184:5979-86. 2002
    The soil bacterium Rhizobium lupini H13-3 has complex right-handed flagellar filaments with unusual ridged, grooved surfaces...
  40. pmc Rhizobium meliloti ntrA (rpoN) gene is required for diverse metabolic functions
    C W Ronson
    J Bacteriol 169:2424-31. 1987
    We report the identification and cloning of an ntrA-like (glnF rpoN) gene of Rhizobium meliloti and show that the R...
  41. ncbi A large-scale Agrobacterium-mediated transformation procedure with a strong positive-negative selection for gene targeting in rice (Oryza sativa L.)
    R Terada
    National Institute for Basic Biology, 444 8585, Okazaki, Japan
    Plant Cell Rep 22:653-9. 2004
    ..The established transformation procedure provides a basis for efficient gene targeting in rice...
  42. ncbi Comparison of several Nicotiana species as hosts for high-scale Agrobacterium-mediated transient expression
    Y V Sheludko
    Institute of Cell Biology and Genetic Engineering, Zabolotnogo Str 148, Kyiv 03143, Ukraine
    Biotechnol Bioeng 96:608-14. 2007
    ..excelsior and N. benthamiana (63.5 and 16.2% TSP, respectively). We displayed that N. excelsior has the best characteristics in regard to biomass yield as well as GFP accumulation level for both types of the expression cassettes tested...
  43. ncbi Reduction of selenite to elemental red selenium by Rhizobium sp. strain B1
    William J Hunter
    USDA ARS, Fort Collins, CO 80526 8119, USA
    Curr Microbiol 55:344-9. 2007
    ..Biochemical, morphological, and 16S rRNA gene sequence alignment identified the isolate as a Rhizobium sp. that is related to but is genetically divergent from R. radiobacter (syn. Agrobacterium tumefaciens) or R...
  44. pmc Functional analysis of the type 3 effector nodulation outer protein L (NopL) from Rhizobium sp. NGR234: symbiotic effects, phosphorylation, and interference with mitogen-activated protein kinase signaling
    Ling Zhang
    State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat Sen University, Guangzhou 510006, China
    J Biol Chem 286:32178-87. 2011
    ..Nodulation outer protein L (NopL) of Rhizobium sp. strain NGR234 is a Rhizobium-specific type 3 effector...
  45. pmc The mosaic structure of the symbiotic plasmid of Rhizobium etli CFN42 and its relation to other symbiotic genome compartments
    Victor Gonzalez
    Centro de Investigacion Sobre Fijacion de Nitrogeno, Universidad Nacional Autonoma de Mexico, Cuernavaca, Morelos, Mexico 62210
    Genome Biol 4:R36. 2003
    ..We report the complete sequence of the symbiotic plasmid of Rhizobium etli CFN42, a microsymbiont of beans, and a comparison with other SGC sequences available.
  46. ncbi A case of promiscuity: Agrobacterium's endless hunt for new partners
    Benoît Lacroix
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794 5215, USA
    Trends Genet 22:29-37. 2006
    ..Moreover, better knowledge of the DNA-transfer mechanisms from bacteria to eukaryotic organisms can also help in understanding horizontal gene transfer--a driving force throughout biological evolution...
  47. pmc T-DNA binary vectors and systems
    Lan Ying Lee
    Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907 1392, USA
    Plant Physiol 146:325-32. 2008
  48. pmc Role of BacA in lipopolysaccharide synthesis, peptide transport, and nodulation by Rhizobium sp. strain NGR234
    Silvia Ardissone
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Universite de Geneve, 30 Quai Ernest Ansermet, Sciences III, 1211 Geneva 4, Switzerland
    J Bacteriol 193:2218-28. 2011
    ..We investigated the role of BacA in Rhizobium species strain NGR234 by mutating the bacA gene...
  49. ncbi Lipopolysaccharides from Legionella and Rhizobium stimulate mouse bone marrow granulocytes via Toll-like receptor 2
    Robert Girard
    Lymphocyte Development, URA 1961 of the National Center for Scientific Research, Pasteur Institute, Paris, France
    J Cell Sci 116:293-302. 2003
    ..from bacteria that do not belong to the Enterobacteriaceae, we show that in bone marrow cells (BMCs) the LPS of Rhizobium species Sin-1 and of three strains of Legionella pneumophila require TLR2 rather than TLR4 to elicit the ..
  50. pmc Conservation of plasmid-encoded traits among bean-nodulating Rhizobium species
    Susana Brom
    Programa de Genetica Molecular de Plasmidos Bacterianos, Centro de Investigacion Sobre Fijacion de Nitrogeno, UNAM, Cuernavaca, Morelos, Mexico
    Appl Environ Microbiol 68:2555-61. 2002
    b>Rhizobium etli type strain CFN42 contains six plasmids...
  51. ncbi Lifestyle alternatives for rhizobia: mutualism, parasitism, and forgoing symbiosis
    R Ford Denison
    Department of Agronomy and Range Science, University of California at Davis, 1 Shields Avenue, Davis, CA 95616, USA
    FEMS Microbiol Lett 237:187-93. 2004
    ..Nonsymbiotic strains are unable to infect legumes at all. Why have rhizobium strains with one of these three strategies not displaced the others? A symbiotic (mutualistic or parasitic) ..
  52. ncbi Stabilizing mechanisms in a legume-rhizobium mutualism
    Katy D Heath
    Department of Plant Biology, University of Minnesota, St Paul, Minnesota 55108, USA
    Evolution 63:652-62. 2009
    ..partner choice and sanctioning may play roles in preventing the invasion of less-beneficial rhizobia in legume-rhizobium mutualisms. The importance of these mechanisms in natural communities, however, remains unclear...
  53. ncbi Rhizobium alkalisoli sp. nov., isolated from Caragana intermedia growing in saline-alkaline soils in the north of China
    Yang Li Lu
    State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China
    Int J Syst Evol Microbiol 59:3006-11. 2009
    ..7 and 99.5 % sequence similarities with those of Rhizobium huautlense SO2(T) and Rhizobium galegae USDA 4128(T), respectively...
  54. ncbi An embryogenic suspension cell culture system for Agrobacterium-mediated transformation of citrus
    M Dutt
    Citrus Research and Education Center, University of Florida IFAS, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
    Plant Cell Rep 29:1251-60. 2010
    ..This protocol can create an avenue for insertion of useful traits into any polyembryonic citrus cultivar that can be established as embryogenic cell suspension cultures, including popular specialty mandarins and seedless cultivars...
  55. ncbi Analysis of core genes supports the reclassification of strains Agrobacterium radiobacter K84 and Agrobacterium tumefaciens AKE10 into the species Rhizobium rhizogenes
    Encarna Velázquez
    Departamento de Microbiologia y Genetica, Edificio Departamental de Biología, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
    Syst Appl Microbiol 33:247-51. 2010
    ..phylogenetic analysis of the chromosomal genes rrs, atpD and recA showed that they should be reclassified into Rhizobium rhizogenes...
  56. ncbi Protein interactions involved in nuclear import of the Agrobacterium VirE2 protein in vivo and in vitro
    Vitaly Citovsky
    Department of Biochemistry and Cell Biology, State University of New York at Stony Brook, Stony Brook, New York 11794 5215, USA
    J Biol Chem 279:29528-33. 2004
    ..Our results indicate that VIP1 functions as a molecular bridge between VirE2 and karyopherin alpha, allowing VirE2 to utilize the host cell nuclear import machinery even without being directly recognized by its components...
  57. ncbi Stable RK2-derived cloning vectors for the analysis of gene expression and gene function in gram-negative bacteria
    B Dombrecht
    F.A. Janssens Laboratory of Genetics, Katholieke Universiteit Leuven, Heverlee, Belgium
    Mol Plant Microbe Interact 14:426-30. 2001
    ..by the RK2 par locus or by insertion of the spsAB or spsCD symbiotic plasmid stability loci from pNGR234a of Rhizobium sp. NGR234...
  58. ncbi A revision of Rhizobium Frank 1889, with an emended description of the genus, and the inclusion of all species of Agrobacterium Conn 1942 and Allorhizobium undicola de Lajudie et al. 1998 as new combinations: Rhizobium radiobacter, R. rhizogenes, R. rubi,
    J M Young
    Landcare Research, Auckland, New Zealand
    Int J Syst Evol Microbiol 51:89-103. 2001
    b>Rhizobium, Agrobacterium and Allorhizobium are genera within the bacterial family Rhizobiaceae, together with Sinorhizobium. The species of Agrobacterium, Agrobacterium tumefaciens (syn...
  59. ncbi Redox changes during the legume-rhizobium symbiosis
    Christine Chang
    UMR INRA Université de Nice Sophia Antipolis CNRS Interactions Biotiques et Santé Végétale, 400 Route des Chappes, BP167, 06903 Sophia Antipolis Cedex, France
    Mol Plant 2:370-7. 2009
    ..This article aims to review recent studies highlighting the role of redox signals in establishing and maintaining symbiosis between rhizobia and legumes...
  60. ncbi The cin quorum sensing locus of Rhizobium etli CNPAF512 affects growth and symbiotic nitrogen fixation
    Ruth Daniels
    Centre of Microbial and Plant Genetics, Katholicke Universitat Leuven, Kasteelpark Arenberg 20, B 3001 Heverlee, Belgium
    J Biol Chem 277:462-8. 2002
    b>Rhizobium etli CNPAF512 produces an autoinducer that inhibits growth of Rhizobium leguminosarum bv. viciae 248 and activates the Agrobacterium tumefaciens tra reporter system. Production of this compound in R...
  61. pmc The exopolysaccharide of Rhizobium sp. YAS34 is not necessary for biofilm formation on Arabidopsis thaliana and Brassica napus roots but contributes to root colonization
    Catherine Santaella
    CEA, DSV, IBEB, SBVME, Laboratory Ecol Microb Rhizosphere and Environ Extrem LEMiRE, Saint Paul lez Durance, F 13108, France
    Environ Microbiol 10:2150-63. 2008
    ..Here, we focused on the function of an EPS produced by Rhizobium sp...
  62. ncbi Molecular basis for cytokinin biosynthesis
    Tomoe Kamada-Nobusada
    RIKEN Plant Science Center, Tsurumi, Yokohama 230 0045, Japan
    Phytochemistry 70:444-9. 2009
    ..Collectively, these advances have revealed the complexity of the entire metabolic scheme for CK biosynthesis...
  63. ncbi Involvement of targeted proteolysis in plant genetic transformation by Agrobacterium
    Tzvi Tzfira
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, New York 11794 5215, USA
    Nature 431:87-92. 2004
    ..The critical role of proteasomal degradation in Agrobacterium-mediated genetic transformation was also evident from inhibition of T-DNA expression by a proteasomal inhibitor...
  64. ncbi Curdlan and other bacterial (1-->3)-beta-D-glucans
    M McIntosh
    Department of Biochemistry, La Trobe University, Bundoora, 3086 Victoria, Australia
    Appl Microbiol Biotechnol 68:163-73. 2005
    ....
  65. pmc Conjugative transfer of p42a from rhizobium etli CFN42, which is required for mobilization of the symbiotic plasmid, is regulated by quorum sensing
    Cristina Tun-Garrido
    Programa de Genetica Molecular de Plasmidos Bacterianos, Centro de Investigacion Sobre Fijacion de Nitrogeno, UNAM, Cuernavaca, Morelos, Mexico
    J Bacteriol 185:1681-92. 2003
    b>Rhizobium etli CFN42 contains six plasmids. Only one of them, p42a, is self-conjugative at high frequency. This plasmid is strictly required for mobilization of the symbiotic plasmid (pSym)...
  66. ncbi Surface polysaccharide involvement in establishing the rhizobium-legume symbiosis
    Nicolas Fraysse
    Laboratoire des IMRCP, UMR5623 UPS CNRS, 118 route de Narbonne, F 31062 Toulouse, France
    Eur J Biochem 270:1365-80. 2003
    ..Their chemistry is important for structural recognition as well as for physico-chemical properties...
  67. ncbi Bacteroid formation in the Rhizobium-legume symbiosis
    V Oke
    Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
    Curr Opin Microbiol 2:641-6. 1999
    During the Rhizobium-legume symbiosis, bacteria enter the cells of host plants and differentiate into nitrogen-fixing bacteroids...
  68. ncbi Efficient production of Agrobacterium rhizogenes-transformed roots and composite plants for studying gene expression in coffee roots
    E Alpizar
    Centre de Cooperation Internationale en Recherche Agronomique pour le Developpement, Département des Cultures Pérennes CIRAD CP, UMR DGPC, Résistance des Plantes, Montpellier, France
    Plant Cell Rep 25:959-67. 2006
    ..These results suggest that composite plants constitute a powerful tool for studying nematode resistance genes...
  69. pmc Key role of bacterial NH(4)(+) metabolism in Rhizobium-plant symbiosis
    Eduardo J Patriarca
    International Institute of Genetics and Biophysics, Consiglio Nazionale delle Ricerche, 80125 Naples, Italy
    Microbiol Mol Biol Rev 66:203-22. 2002
    ..This is a key and necessary step for the differentiation of N(2)-fixing bacteroids (the endocellular symbiotic form of rhizobia) and for the development of efficient nodules...
  70. ncbi TtsI, a key regulator of Rhizobium species NGR234 is required for type III-dependent protein secretion and synthesis of rhamnose-rich polysaccharides
    Corinne Marie
    LBMPS, Département de Biologie Végétale, Sciences III, 30 Quai Ernest Ansermet, University of Geneva, CH 1211 Geneva 4, Switzerland
    Mol Plant Microbe Interact 17:958-66. 2004
    Formation of nitrogen-fixing nodules on legume roots by Rhizobium sp. NGR234 requires an array of bacterial factors, including nodulation outer proteins (Nops) secreted through a type III secretion system (TTSS)...
  71. pmc Infection and invasion of roots by symbiotic, nitrogen-fixing rhizobia during nodulation of temperate legumes
    Daniel J Gage
    Department of Molecular and Cell Biology, University of Connecticut, 75 N Eagleville Rd, U 44, Storrs, CT 06269, USA
    Microbiol Mol Biol Rev 68:280-300. 2004
    Bacteria belonging to the genera Rhizobium, Mesorhizobium, Sinorhizobium, Bradyrhizobium, and Azorhizobium (collectively referred to as rhizobia) grow in the soil as free-living organisms but can also live as nitrogen-fixing symbionts ..
  72. pmc NopL, an effector protein of Rhizobium sp. NGR234, thwarts activation of plant defense reactions
    Alexander V Bartsev
    Laboratoire de Biologie Moleculaire des Plantes Superieures, Sciences III, Universite de Geneve, 1211 Geneve 4, Switzerland
    Plant Physiol 134:871-9. 2004
    ..Type III secretion systems have been found in Rhizobium species that form symbiotic, nitrogen-fixing associations with legumes. One such bacterium, Rhizobium sp...
  73. ncbi Host plant genome overcomes the lack of a bacterial gene for symbiotic nitrogen fixation
    Tsuneo Hakoyama
    National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305 8602, Japan
    Nature 462:514-7. 2009
    ....
  74. pmc Manipulation of auxin transport in plant roots during Rhizobium symbiosis and nematode parasitism
    Wim Grunewald
    Department Molecular Biotechnology, Faculty of Bioscience Engineering, Ghent University, B 9000 Gent, Belgium
    Plant Cell 21:2553-62. 2009
    ..In this review, we focus on recent findings in auxin transport mechanisms during plant development and on how plant symbionts and parasites have evolved to manipulate these mechanisms for their own purposes...
  75. ncbi A protocol for Agrobacterium-mediated transformation in rice
    Asuka Nishimura
    Honda Research Institute Japan Co Ltd, 2 1 4 Kazusa Kamatari, Kisarazu, Chiba 292 0818, Japan
    Nat Protoc 1:2796-802. 2006
    ..Using this method, transgenic rice plants can be obtained in about 2-3 months with a transformation frequency of 30-50%, both in easily cultured varieties and recalcitrant elite japonica rice...
  76. ncbi Rhizobium selenireducens sp. nov.: a selenite-reducing alpha-Proteobacteria isolated from a bioreactor
    W J Hunter
    United States Department of Agriculture Agricultural Research Service, 2150 D Centre Avenue, Fort Collins, CO 80526 8119, USA
    Curr Microbiol 55:455-60. 2007
    ..16S rRNA gene-sequence alignment identified the isolate as a Rhizobium sp. belonging to the Rhizobium clade, which includes R. daejeonense, R. giardinii, R. undicola, R...
  77. pmc The VirE3 protein of Agrobacterium mimics a host cell function required for plant genetic transformation
    Benoît Lacroix
    Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, NY 11794 5215, USA
    EMBO J 24:428-37. 2005
    ....
  78. pmc Rhizavidin from Rhizobium etli: the first natural dimer in the avidin protein family
    Satu H Helppolainen
    Institute of Medical Technology, University of Tampere, FI 33014 Tampere, Finland
    Biochem J 405:397-405. 2007
    b>Rhizobium etli CFN42 is a symbiotic nitrogen-fixing bacterium of the common bean Phaseolus vulgaris. The symbiotic plasmid p42d of R. etli comprises a gene encoding a putative (strept)avidin-like protein, named rhizavidin...
  79. ncbi Agrobacterium tumefaciens and Agrobacterium rhizogenes transformed roots of the parasitic plant Triphysaria versicolor retain parasitic competence
    Alexey Tomilov
    Department of Plant Sciences, University of California Davis, Davis, CA 95616, USA
    Planta 225:1059-71. 2007
    ..Transgenic roots also remained competent to form haustoria in response to purified inducing factors. These transformation systems will allow an in planta assessment of genes predicted to function in plant parasitism...
  80. pmc Rhizobium meliloti fixGHI sequence predicts involvement of a specific cation pump in symbiotic nitrogen fixation
    D Kahn
    Laboratoire de Biologie Moleculaire des relations Plantes Microorganismes, Institut National de la Recherche Agronomique, Centre National de la Recherche Scientifique, Castanet Tolosan, France
    J Bacteriol 171:929-39. 1989
    We present genetic and structural analyses of a fix operon conserved among rhizobia, fixGHI from Rhizobium meliloti. The nucleotide sequence of the operon suggests it may contain a fourth gene, fixS...
  81. ncbi Variability in the level of RNA silencing suppression caused by triple gene block protein 1 (TGBp1) from various potexviruses during infection
    Hiroko Senshu
    Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo ku, Tokyo 113 8657, Japan
    J Gen Virol 90:1014-24. 2009
    ..Moreover, we investigated the effect of TGBp1 encoded by Plantago asiatica mosaic virus (PlAMV), which exhibited a strong suppressor activity, on the accumulation of microRNA, virus genomic RNA and virus-derived small interfering RNAs...
  82. ncbi rosR, a determinant of nodulation competitiveness in Rhizobium etli
    M A Bittinger
    Cellular and Molecular Biology Program, University of Wisconsin Madison 53706, USA
    Mol Plant Microbe Interact 10:180-6. 1997
    We previously described a Tn5 mutant of Rhizobium etli strain CE3, designated CE3003, that is decreased in nodulation competitiveness, reduced in competitive growth in the rhizosphere, and has a hydrophobic cell surface (R. S. Araujo, E...
  83. pmc In planta engineering of viral RNA replicons: efficient assembly by recombination of DNA modules delivered by Agrobacterium
    Sylvestre Marillonnet
    Icon Genetics, Biozentrum Halle, Weinbergweg 22, D 06120 Halle Saale, Germany
    Proc Natl Acad Sci U S A 101:6852-7. 2004
    ....
  84. pmc New betaproteobacterial Rhizobium strains able to efficiently nodulate Parapiptadenia rigida (Benth.) Brenan
    Cecilia Taulé
    Departamento de Bioquímica y Genómica Microbianas, Instituto de Investigaciones Biologicas Clemente Estable, MEC, Unidad Asociada a la Facultad de Ciencias, Montevideo, Uruguay
    Appl Environ Microbiol 78:1692-700. 2012
    ..genes, the isolates could be grouped into seven genotypes, including the genera Burkholderia, Cupriavidus, and Rhizobium, among which the Burkholderia genotypes were the predominant group...
  85. ncbi Construction of physical map and mapping of chromosomal virulence genes of the biovar 3 Agrobacterium (Rhizobium vitis) strain K-Ag-1
    Katsuyuki Tanaka
    Department of Biological Science, Graduate School of Science, Hiroshima University, Kagamiyama 1 3 1, Higashi Hiroshima 739 8526, Japan
    Genes Genet Syst 81:373-80. 2006
    Most plant pathogenic Agrobacterium strains have been classified into three biovars, "biovar 1 (A. tumefaciens; Rhizobium radiobacter), biovar 2 (A. rhizogenes; R. rhizogenes) and biovar 3 (A. vitis; R. vitis)"...
  86. pmc Multilocus sequence-based analysis delineates a clonal population of Agrobacterium (Rhizobium) radiobacter (Agrobacterium tumefaciens) of human origin
    Fabien Aujoulat
    Universite Montpellier 1, Unité Mixte de Recherche 5119 Ecosym, Equipe Pathogènes et Environnements, Faculte de Pharmacie, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 5, France
    J Bacteriol 193:2608-18. 2011
    ..In particular, isolates of human origin were all affiliated with the species Agrobacterium (Rhizobium) radiobacter, while phytopathogenic strains were designated under the synonym denomination Agrobacterium ..
  87. ncbi The physiological effects and metabolic alterations caused by the expression of Rhizobium etli pyruvate carboxylase in Escherichia coli
    R R Gokarn
    Center for Molecular BioEngineering, Department of Biological and Agricultural Engineering, University of Georgia, Athens 30602, USA
    Appl Microbiol Biotechnol 56:188-95. 2001
    ..Some microorganisms, such as Rhizobium etli and Corynebacterium glutamicum, are able to synthesize OAA during growth on glucose via either of the ..
  88. pmc Evolutionary origin of rhizobium Nod factor signaling
    Arend Streng
    Department of Plant Sciences, Laboratory of Molecular Biology, Wageningen University, Wageningen, The Netherlands
    Plant Signal Behav 6:1510-4. 2011
    For over two decades now, it is known that the nodule symbiosis between legume plants and nitrogen fixing rhizobium bacteria is set in motion by the bacterial signal molecule named nodulation (Nod) factor...
  89. ncbi Flavonoids, NodD1, NodD2, and nod-box NB15 modulate expression of the y4wEFG locus that is required for indole-3-acetic acid synthesis in Rhizobium sp. strain NGR234
    Mart Theunis
    Laboratory of Plant Physiology and Biochemistry, Department of Biology, University of Antwerp, Universiteitsplein 1, B 2610 Antwerp, Belgium
    Mol Plant Microbe Interact 17:1153-61. 2004
    ..Here, the molecular basis of IAA synthesis in Rhizobium sp. NGR234 was investigated...
  90. pmc Microarray-based detection and typing of the Rhizobium nodulation gene nodC: potential of DNA arrays to diagnose biological functions of interest
    Cyril Bontemps
    Laboratoire des Interactions Plantes Micro organismes, INRA CNRS, BP 52627, 31326 Castanet Tolosan Cedex, France
    Appl Environ Microbiol 71:8042-8. 2005
    ..This approach could be extended to a panel of diagnostic genes and constitute a powerful tool for studying the distribution of genes of interest in the environment, as well as for bacteria identification...
  91. pmc fixK, a gene homologous with fnr and crp from Escherichia coli, regulates nitrogen fixation genes both positively and negatively in Rhizobium meliloti
    J Batut
    Laboratoire de Biologie Moleculaire des relations Plantes Microorganismes, CNRS INRA, Castanet Tolosan, France
    EMBO J 8:1279-86. 1989
    Nitrogen fixation genes are shown to undergo a complex positive and negative regulation in Rhizobium meliloti. Activation of fixN by fixLJ is shown to require a third regulatory gene, fixK...
  92. pmc Enzymatic tailoring of ornithine in the biosynthesis of the Rhizobium cyclic trihydroxamate siderophore vicibactin
    John R Heemstra
    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA
    J Am Chem Soc 131:15317-29. 2009
    To acquire iron, the N(2)-fixing, symbiotic bacterium Rhizobium sp. produce the cyclic trihydroxamate siderophore vicibactin, containing a 30-membered trilactone scaffold...
  93. pmc Expression of thiamin biosynthetic genes (thiCOGE) and production of symbiotic terminal oxidase cbb3 in Rhizobium etli
    J Miranda-Rios
    Departamento de Biologia Molecular de Plantas, Instituto de Biotecnologia, U N A M, Cuernavaca, Morelos, Mexico
    J Bacteriol 179:6887-93. 1997
    ..and sequence analysis of four genes, located on plasmid pb, which are involved in the synthesis of thiamin in Rhizobium etli (thiC, thiO, thiG, and thiE)...
  94. ncbi Regulation of exopolysaccharide synthesis in Rhizobium sp. strain TAL1145 involves an alternative sigma factor gene, rpoH2
    Pakieli H Kaufusi
    Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East West Road, Ag Science 218, Honolulu, HI 96822, USA
    Microbiology 150:3473-82. 2004
    Exopolysaccharide (EPS) produced by Rhizobium sp. strain TAL1145 has been shown to be essential for effective nodulation on Leucaena leucocephala (leucaena)...
  95. ncbi RepA negatively autoregulates the transcription of the repABC operon of the Rhizobium etli symbiotic plasmid basic replicon
    M A Ramírez-Romero
    Programa de Evolución Molecular, Centro de Investigacion Sobre Fijacion de Nitrogeno, Universidad Nacional Autonoma de Mexico, Apartado Postal 565 A, Cuernavaca, Morelos, Mexico
    Mol Microbiol 42:195-204. 2001
    The basic replicon of Rhizobium etli CE3, like other members of the repABC plasmid family, is constituted by the repABC operon. RepC is essential for replication, and RepA and RepB play a role in plasmid segregation...
  96. pmc R gene-controlled host specificity in the legume-rhizobia symbiosis
    Shengming Yang
    Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
    Proc Natl Acad Sci U S A 107:18735-40. 2010
    ..This study suggests that establishment of a root nodule symbiosis requires the evasion of plant immune responses triggered by rhizobial effectors...
  97. pmc Bathy phytochromes in rhizobial soil bacteria
    Gregor Rottwinkel
    Institute of Botany, Faculty of Chemistry and Biosciences, Karlsruhe Institute of Technology, Kaiserstr 2, 76131 Karlsruhe, Germany
    J Bacteriol 192:5124-33. 2010
    ..b>Rhizobium leguminosarum 3841, Rhizobium etli CIAT652, and Azorhizobium caulinodans ORS571 contain a single phytochrome of ..
  98. ncbi Agrobacterium-mediated transient expression in citrus leaves: a rapid tool for gene expression and functional gene assay
    Jose F L Figueiredo
    Plant Pathology Department, University of Florida, Gainesville, FL, USA
    Plant Cell Rep 30:1339-45. 2011
    ..Transient expression in citrus has the potential for aiding in the development of new disease defense strategies in citrus...
  99. ncbi The mid genes of Rhizobium sp strain TAL1145 are required for degradation of mimosine into 3-hydroxy-4-pyridone and are inducible by mimosine
    D Borthakur
    Department of Molecular Biosciences and Bioengineering, University of Hawaii, 1955 E West Road, Ag Sci 218, Honolulu, HI 96822, USA
    Microbiology 149:537-46. 2003
    ..The leucaena-nodulating Rhizobium sp. strain TAL1145 degrades mimosine (Mid(+)) and utilizes it as a source of carbon and nitrogen...
  100. ncbi Rhizobial measures to evade host defense strategies and endogenous threats to persistent symbiotic nitrogen fixation: a focus on two legume-rhizobium model systems
    Kazuhiko Saeki
    Department of Biological Sciences, Faculty of Science, Nara Women s University, Kitauoya Nishimachi, Nara, Japan
    Cell Mol Life Sci 68:1327-39. 2011
    The establishment and maintenance of rhizobium-legume symbioses require a sequence of highly regulated and coordinated events between the organisms...
  101. ncbi Genetic dissection of Rhizobium-induced infection and nodule organogenesis in pea based on ENOD12A and ENOD5 expression analysis
    E A Dolgikh
    All Russia Research Institute for Agricultural Microbiology ARRIAM, St Petersburg, Russia
    Plant Biol (Stuttg) 13:285-96. 2011
    ..Activation of PsENOD12a only requires components involved in early steps of signalling and can be considered as a marker of early symbiotic events preceding infection...

Research Grants62

  1. Control of bacterial morphology and differentiation
    Yves V Brun; Fiscal Year: 2013
    ..Insights gained from these studies can be used to design strategies to inhibit growth, prevent key morphological changes, or alter important protein localization pathways in pathogens, thereby improving our ability to control them. ..
  2. Regulatory Circuits Controlling Development of Dormant Microbial Cysts
    CARL EUGENE BAUER; Fiscal Year: 2013
    ..and has implicated cGMP production in many other important bacterial species such as Azospirillum brasilense, Rhizobium leguminosarum, Mesorhizobium loti, Sinorhizobium medicae, Sinorhizobium meliloti, Sinorhizobium fredii, Delftia ..
  3. Interconnectivity between genome packagaing and other viral functions
    A L Rao; Fiscal Year: 2010
    ....
  4. MOLECULAR GENETICS OF RHIZOBIUM NODULATION PLASMIDS
    Graham C Walker; Fiscal Year: 2013
    ..The project has offered novel insights into the biosynthesis of B12, a critically important vitamin for human health, and will continue to explore the role of vitamin B12 in biology. ..
  5. DnaK Protein Inhibitor Antimicrobials
    Michael Sturgess; Fiscal Year: 2003
    ..abstract_text> ..
  6. Molecular Mechanisms that Regulate Phase Transition in Dimorphic Fungi
    Gregory M Gauthier; Fiscal Year: 2010
    ..The research proposed is relevant to public health because it will provide insight into the mechanisms by which fungi cause disease and may lead to the identification of new antifungal drug targets. ..
  7. TRANSLOCATION OF DNA ACROSS THE AGROBACTERIUM ENVELOPE
    Peter J Christie; Fiscal Year: 2013
    ..These systems represent novel targets for therapeutics directed to blocking antibiotic resistance spread and bacterial disease progression. ..
  8. Ecological dynamics of facultative bacterial pathogens
    JAMES DAVID BEVER; Fiscal Year: 2013
    ..These results then form the basis for evaluating the importance of horizontal gene transfer of virulence genes and for scaling up to infection dynamics and disease incidence. ..
  9. MOLECULAR ANALYSIS OF FLOWERING GENES OF PHARBITIS NIL
    Anath Das; Fiscal Year: 1991
    ..thaliana genes by similar procedures. Induction of flowering is a critical process in angiosperm lifecycle. Understanding how photoperiod control this process will greatly broaden our knowledge on developmental processes in plants...
  10. Developmental Asymmetry in Agrobacterium tumefaciens
    JASON EUGENE HEINDL; Fiscal Year: 2013
    ..tumefaciens will be identified using a combination of transposon mutagenesis and a novel high-throughput microscopy screen. ..
  11. Genetics and biosynthesis of an O antigen essential for symbiosis
    KENNETH D NOEL; Fiscal Year: 2010
    ..There are two well-differentiated mechanisms of O-antigen synthesis. The LPS of Rhizobium etli CE3 is one of the better characterized examples (structurally and biologically) in which the O-antigen ..
  12. Characterization of the helical localization pattern of the T4SS in Agrobacterium
    Julieta Aguilar; Fiscal Year: 2010
    ..This observation leads us to propose that the cytoskeleton of Agrobacteria has a role In the localization of the T4SS. In specific aim 2 will investigate the potential role of the cytoskeleton on T4SS assembly and function. ..
  13. MOLECULAR ANALYSIS OF A POTENTIAL TRANSPORT OPERON IN AA
    Karen Novak; Fiscal Year: 2001
    ..Identification of genes involved in the secretion of macromolecules from Aa may lead to the development of strategies aimed at diminishing the virulence potential of this pathogenic microorganism. ..
  14. Genetic analysis of Cryptococcus neoformans virulence
    Joseph Heitman; Fiscal Year: 2009
    ..These studies will enable a genome-wide definition of the gene set contributing to virulence of this common human fungal pathogen. ..
  15. A molecular toolbox for hypothesis testing in the dermatophytes
    Theodore C White; Fiscal Year: 2010
    ..This proposal will develop a set of molecular tools that can be used in combination with the soon-to-be-completed genome sequences to address important questions about dermatophyte prevention, treatment and diagnosis. ..
  16. REGULATION OF SYNTHESIS OF A HORMONE INDUCED PROTEIN
    GLENN GALAU; Fiscal Year: 1991
    ..These are predicted to be deficient in Lea function and as such should help elucidate both the regulation and function of these proteins...
  17. Modulation of two-component signaling in alphaproteobacteria
    Joel Griffitts; Fiscal Year: 2009
    ..Since this signaling system is also present in several animal pathogens, this project promises to yield broad molecular-level insights into host-microbe interactions. ..
  18. CARBOHYDRATE BINDING PROTEIN OF B. JAPONICUM
    SIUCHEONG HO; Fiscal Year: 1993
    ..This specificity correlated with the behavior of intact Rhizobium in four carbohydrate-specific binding assays: (a) adsorption to Lac-Sepharose beads; (b) heterotypic binding to ..
  19. Intracellular screens discovery of natural products*(RMI)
    Jo Handelsman; Fiscal Year: 2007
    ..This research will lead to universal expression systems that will be useful for metagenomic analysis and other techniques that rely on heterologous gene expression. ..
  20. TAXOL PRODUCTION VIA IN VITRO CULTURE TECHNIQUE
    CHING YEH HU; Fiscal Year: 1992
    ....
  21. REGULATION OF NODULATION GENES IN RHIZOBIUM MELILOTI
    Sharon Long; Fiscal Year: 2002
    Our proposal concerns the regulation of gene expression in a prokaryote, Rhizobium meliloti, that infects and establishes symbiosis with eukaryotic plant hosts such as alfalfa (Medicago sativa)...
  22. GORDON CONFERENCE ON MICROBIAL ADHESION MECHANISMS
    Roy Curtiss; Fiscal Year: 1993
    ..to the molecular signaling of events that occur in plant-microbe interactions leading to nitrogen fixation by Rhizobium species on leguminous plants...
  23. FLOW CYTOMETER FOR RESEARCH IN THE BIOLOGICAL SCIENCES
    Patricia Jones; Fiscal Year: 1999
    ..The fourth project will use GFP reporter constructs to identify developmentally-controlled promoters in Rhizobium bacteria solely expressed in symbiotic root nodules, perhaps induced by host signal molecules...
  24. tRNA mediated assembly in an icosahedral RNA virus
    A L Rao; Fiscal Year: 2006
    ..Collectively, the proposed studies will advance our understanding of the assembly mechanisms of icosahedral viruses that are known to cause economically important diseases in humans, animals, insects and plants. ..
  25. TAXIS OF RHIZOBIA TO LOCALIZED SITES ON LEGUME ROOTS
    KOSTIA BERGMAN; Fiscal Year: 1990
    ..This assay is made specific by the use of two mutants of Rhizobium meliloti strain SU47 that no longer detect any pure substance tested (primarily sugar and amino acids) but still ..
  26. REGULATION OF GLYCOLYTIC GENES IN ARABIDOPSIS
    Ming Che Shih; Fiscal Year: 1993
    ....
  27. TRIFOLIIN A & ITS RECEPTORS ON RHIZOBIUM TRIFOLII
    Frank Dazzo; Fiscal Year: 1990
    b>Rhizobium trifolii is a gram-negative bacterium which specifically infects clover root hairs and forms a root nodule symbiosis which fixes atmospheric nitrogen into ammonia...
  28. Arrested Development of Arabidopsis
    F Pickett; Fiscal Year: 2003
    ..These projects will support our long-term goal to understand the informational context required for meristem initiation and function, and to understand the regulatory interplay occurring between the meristem and developing leaves. ..
  29. EXPRESSION OF SIVmac239 GP120 IN TRANSGENIC MAIZE
    JOSEPH JILKA; Fiscal Year: 2001
    ..This application will serve as a model for the exploration of the use of this methodology to develop HIV vaccines, potentially against a number of important HIV epitopes, for the control of HIV infection. ..
  30. Identification of Brucella Type IV Effectors
    RENEE TSOLIS; Fiscal Year: 2006
    ..It is our expectation that the results of this work will identify B. abortus Type IV effector proteins that will form the basis for a future R01 application to characterize their function. ..
  31. OXYGEN REGULATION OF SYMBIOTIC GENES IN RHIZOBIUM
    Gary Ditta; Fiscal Year: 1993
    The long term goal of our research is to try and understand how the bacterium Rhizobium meliloti establishes a nitrogen-fixing symbiosis with its legume host alfalfa...
  32. T-DNA INTEGRATION DURING CROWN GALL TUMORIGENESIS
    LLOYD REAM; Fiscal Year: 1991
    ..Thus, A. tumefaciens may serve as a model for rickettsial pathogenesis as well as human tumorigenesis...
  33. RHIZOBIUM EXOPOLYSACCHARIDES AND NODULATION
    JOHN LEIGH; Fiscal Year: 1992
    An integrated genetic and biochemical approach will be used to study Rhizobium meliloti extracellular polysaccharides, and the role of these polysaccharides in the formation of nitrogen fixing root nodules on alfalfa...
  34. CIS & TRANS-ACTING COMPONENTS OF T-DNA PROMOTER FUNCTION
    WILLIAM GURLEY; Fiscal Year: 1992
    ..Although T-DNA genes may be bacterial in evolutionary origin, and certainly by lineage, they have achieved a close mimicry of plant genes from a functional standpoint and in their interactions with the trans-acting factors...
  35. Approach to control caries through apple-derived vaccine
    Hilary Koprowski; Fiscal Year: 2006
    ..The proposed research will initiate a novel approach to develop a plant fruit-based vaccine delivery system for a pharmaceutical vaccine against Dental caries and other infectious diseases. ..
  36. GENETICS OF HOST-SPECIFIC INFECTION BY RHIZOBIA
    Gary Stacey; Fiscal Year: 1990
    ..This proposal seeks to address this question using the soybean- rhizobium infection process as a model...
  37. Passive immunotherapy using plant-derived broadly HIV-1 neutralizing MAbs to prev
    Yvonne Rosenberg; Fiscal Year: 2009
    ..In this proposal, these MAbs will be produced in tobacco plants and their ability to neutralize HIV in vitro and to protect monkeys in vivo will be compared to currently used and expensive CHO-derived MAbs. ..
  38. HOST RECOGNITION AND INFECTION OF SOYBEAN BY RHIZOBIUM
    Gary Stacey; Fiscal Year: 1990
    ..The outer membrane of B. japonicum appears to undergo modification early in the infection cycle. All of the above cell surface changes may be critical to the determination of host specificity...
  39. A Plant-Derived, Multi-Component Tuberculosis Vaccine
    AMANDA WALMSLEY; Fiscal Year: 2004
    ..abstract_text> ..
  40. MECHANISM OF PLASMID DNA TRANSFER IN BACTERIA
    Donald Guiney; Fiscal Year: 1993
    ....
  41. Early Host Response Elicitation by Agrobacterium
    Marion Brodhagen; Fiscal Year: 2004
    ..abstract_text> ..
  42. REGULATION OF NODULATION GENES IN RHIZOBIUM MELILOTI
    Sharon Long; Fiscal Year: 1992
    ..We study the nutritionally mutualistic interaction or Rhizobium meliloti with a host legume, alfalfa...
  43. Effectors and Suppressors of RNA Silencing
    Lisa Johansen; Fiscal Year: 2004
    ..Introducing a combination of components and effectors of the silencing pathway will allow for a more detailed understanding of the initiation, maintenance, and signaling stages of RNA silencing. ..
  44. TAXOL AND TAXANES FROM PLANT TISSUE CULTURE
    Ching Jer Chang; Fiscal Year: 1993
    ....
  45. INTERACTIONS BETWEEN AGROBACTERIUM AND HOST PLANTS
    STEPHEN WINANS; Fiscal Year: 1993
    ..By analyzing their predicted amino acid sequence and by characterizing stains with mutations in each of these genes we will gain insights about their role in the maintenance of this parasitic association...
  46. GENOMICS APPROACH TO A PATHOGEN OF ANIMALS AND PLANTS
    BRADLEY GOODNER; Fiscal Year: 2000
    ..tumefaciens genome in order to search new genes involved in virulence or interaction, and 4) to functionally characterize a few of these new genes. Both biochemical and genetic approaches will be used to test gene functions. ..
  47. CHEMICAL & GENETIC APPROACHES TO DEFINE CELL ACTIVATION
    David Lynn; Fiscal Year: 2005
    ..In addition, this specific signaling system regulates the only know natural vector for inter-Kingdom gene transfer and understanding this mechanism has already and will continue to widened the range of its use in biotechnology. ..
  48. A DeltaVision Restoration Microscope forCNR Imaging
    Steven Ruzin; Fiscal Year: 2002
    ..abstract_text> ..
  49. Evolution of Estrogen Receptor-Ligand Interactions
    Jennifer Fox; Fiscal Year: 2006
    ..Such an experimental system will allow the rigorous testing of hypotheses about ER-ligand structure function relationships and the dynamics of receptor-ligand coevolution. ..
  50. Use of an Organophosphorus (OP) Hydrolase for Acute OP Poisoning
    Steven Bird; Fiscal Year: 2008
    ..Our central hypothesis is that OpdA is safe and improves survival after poisoning with parathion. ..
  51. INTERACTIONS BETWEEN AGROBACTERIUM AND HOST PLANTS
    Stephen C Winans; Fiscal Year: 2010
    ..Direct targets of YenR and YenS will be identified and assessed for their roles in the biology and ecology of Y. enterocolitica and Y. pestis. ..
  52. Siderophore transport mechanism via membrane receptors
    Ranjan Chakraborty; Fiscal Year: 2004
    ..For the mutant proteins showing normal binding and defective transport, methods of purification and crystallization will be standardized. ..
  53. Microarray Expression Analysis of Burkholderia Mallei
    William Nierman; Fiscal Year: 2003
    ..Function and virulence validation of the identified virulence genes will be explored by construction and phenotype analysis of targeted knockout strains. ..
  54. Ehrilchiacidal Mechanisms In Leukocytes
    Yasuko Rikihisa; Fiscal Year: 2009
    ..The results may point to a potential target for new treatment and prevention of HME and HGE. ..
  55. Comparison of Human Ehrlichiosis Agent Genomes
    Yasuko Rikihisa; Fiscal Year: 2010
    ..chaffeensis virulence determinants and their pathogenic mechanisms. The results may point to potential chemotherapy, chemopreventive and/or vaccine candidates for treatment and prevention of human ehrlichiosis. ..